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From today onwards, for a few days, I will post one Bold [#permalink]
05 Jun 2011, 23:47

1

This post receivedKUDOS

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E

Difficulty:

(N/A)

Question Stats:

14%(02:50) correct
86%(01:32) wrong based on 7 sessions

From today onwards, for a few days, I will post one Bold Faced CR Question. Unfortunately, I have the OA, but no explanation. So every person who solves the question must give a valid explanation.

Here goes for today:

The interstitial nucleus, a sub-region of the brain’s hypothalamus, is typically smaller for male cats than for female cats. A neurobiologist performed autopsies on male cats who died from disease X, a disease affecting no more than 0.5 percent of male cats, and found that these male cats had interstitial nuclei that were as large as those generally found in female cats. Thus, the size of the interstitial nucleus determines whether or not male cats can contract disease X, but, the hypothalamus is known not to be causally linked to disease Y, and disease X is a subtype of disease Y.

The two portions in boldface play which of the following roles?

(A) The first is a fact in support of the consideration that is one of two points of this argument; the second is the alternative point that weighs against the first. (B) The first is an evidence that supports the consideration that the argument includes; the second is the fact that weighs against that consideration that could be drawn from the first. (C) The first is a general principle that is against the conclusion; the second is that conclusion. (D) The first is an evidence that supports the conclusion; the second is an exceptional example. (E) The first is a fact in support of the conclusion that the argument depends on; the second is a fact that is against the first one.

Disclosure:These questions have been taken from a word document found in a forum. But apparently a few have been taken from the OG. Nevertheless, its good practise.

From today onwards, for a few days, I will post one Bold Faced CR Question. Unfortunately, I have the OA, but no explanation. So every person who solves the question must give a valid explanation.

Here goes for today:

The interstitial nucleus, a sub-region of the brain’s hypothalamus, is typically smaller for male cats than for female cats. A neurobiologist performed autopsies on male cats who died from disease X, a disease affecting no more than 0.5 percent of male cats, and found that these male cats had interstitial nuclei that were as large as those generally found in female cats. Thus, the size of the interstitial nucleus determines whether or not male cats can contract disease X, but, the hypothalamus is known not to be causally linked to disease Y, and disease X is a subtype of disease Y.

The two portions in boldface play which of the following roles?

(A) The first is a fact in support of the consideration that is one of two points of this argument; the second is the alternative point that weighs against the first. Correct.

(B) The first is an evidence that supports the consideration that the argument includes; the second is the fact that weighs against that consideration that could be drawn from the first. Second statement could NOT be drawn from the first. Second statement is just a fact independent of the first one.

(C) The first is a general principle that is against the conclusion; the second is that conclusion. Nothing in the first is against the conclusion.

(D) The first is an evidence that supports the conclusion; the second is an exceptional example. First one is an evidence, fine. Second one is just a fact rather than an example.

(E) The first is a fact in support of the conclusion that the argument depends on; the second is a fact that is against the first one. This comes very close to the answer. In fact, it took me a while before I leaned more toward option A. The first one is a fact supporting the CONCLUSION(conclusion is stricter). The second is a fact against the first one.Thus, the word conclusion is stronger. The author didn't conclude that the size of the nucleus will be the indicator because in his very next statement, he provides us with a paradoxical statement that is raising a doubt in Author's mind as well. Thus, it is more a CONSIDERATION than a CONCLUSION.

Disclosure:These questions have been taken from a word document found in a forum. But apparently a few have been taken from the OG. Nevertheless, its good practice. Thanks for the initiative. These BOLD faced CR and ANALOGY CR's are indeed trickier than other question types.

(A) The first is a fact in support of the consideration that is one of two points of this argument; the second is the alternative point that weighs against the first. Correct.

(B) The first is an evidence that supports the consideration that the argument includes; the second is the fact that weighs against that consideration that could be drawn from the first. Second statement could NOT be drawn from the first. Second statement is just a fact independent of the first one.

I think B is a better answer even though the OA says A. i think this is not a real GMAT question and either it is a badly presented question or badly presented answer choices, since with a real official GMAT logic questions things are very black and white with no possibility of gray areas.

I believe the whole argument has one consideration which starts with a conclusion indicator [thus]: "Thus, the size of the interstitial nucleus determines whether or not male cats can contract disease X", the first bold face: "these male cats had interstitial nuclei that were as large as those generally found in female cats" just supports the consideration. and the 2nd bold face "but, the hypothalamus is known not to be causally linked to disease Y, and disease X is a subtype of disease Y." casts doubt on the consideration. B) is not saying that the 2nd bold face is drove from first bold face, it is saying that it goes against the consideration that is drove from the first bold face. which is exactly what is going on with the argument. on the other hand

A)says that the argument has two points, which is not correct. argument has one point and two contradicting premises.the 2nd bold face is not an alternating consideration it is just another premiss that goes against the conclusion that the author tries to get too. and if you notice the author says "it CAN cause" and he does not say "it will cause" in the conclusion he gets to, he leaves room for the 2nd bold face to casts its doubt. additionally A says that "

[quote="fluke](E) The first is a fact in support of the conclusion that the argument depends on; the second is a fact that is against the first one. This comes very close to the answer. In fact, it took me a while before I leaned more toward option A. The first one is a fact supporting the CONCLUSION(conclusion is stricter). The second is a fact against the first one.Thus, the word conclusion is stronger. The author didn't conclude that the size of the nucleus will be the indicator because in his very next statement, he provides us with a paradoxical statement that is raising a doubt in Author's mind as well. Thus, it is more a CONSIDERATION than a CONCLUSION.

[/quote]

i also thought that E is stronger but then noticed in E one thing 'against'. I don't think both facts are contradicting.